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TitleEstimation of maximum lake depth from the surrounding topography: towards a regional assessment of the occurrence of taliks below Arctic lakes
LicencePlease note the adoption of the Open Government Licence - Canada supersedes any previous licences.
AuthorLeBlanc, A -MORCID logo; Chartrand, JORCID logo; Smith, S LORCID logo
SourceGeological Survey of Canada, Scientific Presentation 122, 2021, 1 sheet, Open Access logo Open Access
PublisherNatural Resources Canada
MeetingArctic Change 2020 Conference; December 7-10, 2020
Mediaon-line; digital
RelatedThis publication is related to the following publications
File formatpdf
NTS55J/13; 55K/14; 55K/15; 55K/16; 55N/01; 55N/02; 55N/03; 55O/04; 66A/02; 66A/03; 66A/04; 66A/05; 66A/06; 66A/07; 66B/01; 66B/08; 66B/09; 66B/16; 66G/01; 66G/08; 66H/02; 66H/03; 66H/04; 66H/05; 66H/06; 66H/07; 76E; 76F; 76G; 76H; 76I; 76J; 76K; 76L; 76M; 76N; 76O; 76P; 77A/02; 77A/03; 77A/04; 77A/05; 77A/06; 77A/07; 77B/01; 77B/02; 77B/03; 77B/04; 77B/05; 77B/06; 77B/07; 77B/08
AreaRankin Inlet; Baker Lake; Kitikmeot; Bathurst Inlet
Lat/Long WENS -93.0833 -91.7500 63.2500 62.7500
Lat/Long WENS -98.2500 -96.5000 65.5000 64.0000
Lat/Long WENS-112.0000 -105.5000 68.5000 65.0000
Subjectssurficial geology/geomorphology; environmental geology; hydrogeology; Nature and Environment; Science and Technology; Economics and Industry; permafrost; talik; surface waters; lakes; lake water depths; topography; groundwater; groundwater flow; groundwater pollution; mining; mine development; transport mechanisms; mine waste products; waste disposal sites; models; statistical analyses; ArcticDEM; Climate change; Mining industry; Digital elevation data; Geographic data; Geographic information systems; cumulative effects
Illustrationsschematic cross-sections; location maps; geoscientific sketch maps; flow charts; diagrams; plots
ProgramClimate Change Geoscience Permafrost
Released2021 04 21
Summary(Plain Language Summary, not published)
Open taliks, areas of unfrozen ground, are mainly found beneath large and deep lakes that do not freeze to their bottom. Their connection to the regional groundwater can affect the development of mine projects due to these potential pathways for contaminant transport. This study explores the use of a high-resolution digital elevation model to extract topographical variables surrounding some lakes in Nunavut to run regional models of maximum lake depth. This step is use subsequently in the assessment of the occurrence of taliks below Arctic lakes in the Kivalliq and Kitikmeot regions of Nunavut.

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